| Localité | Code postal |
|---|---|
| Amesbury, Essex | 01913 |
| Andover, Essex | 01810, 05501 |
| Beverly, Essex | 01915 |
| Beverly Farms, Essex | 01915 |
| Boxford, Essex | 01921 |
| Bradford, Essex | 01835 |
| Byfield, Essex | 01922 |
| Danvers, Essex | 01923 |
| East Lynn, Essex | 01904 |
| Essex, Essex | 01929 |
| Georgetown, Essex | 01833 |
| Gloucester, Essex | 01930 |
| Groveland, Essex | 01834 |
| Hamilton, Essex | 01936 |
| Hathorne, Essex | 01937 |
| Haverhill, Essex | 01830, 01832, 01835 |
| Ipswich, Essex | 01938 |
| Lawrence, Essex | 01840, 01841, 01843 |
| Lynn, Essex | 01901, 01902, 01904, 01905 |
| Lynnfield, Essex | 01940 |
| Magnolia, Essex | 01930 |
| Manchester, Essex | 01944 |
| Manchester by the Sea, Essex | 01944 |
| Marblehead, Essex | 01945 |
| Merrimac, Essex | 01860 |
| Methuen, Essex | 01844 |